Bring a medium pot of water to a boil and cook the soba noodles according to package directions, adding the sugar snap peas for the last 60 seconds of cooking.
Drain the noodles and peas, then rinse under cold water to stop the cooking process and set aside in a large bowl.
In a small jar or bowl, whisk together the tamari, rice vinegar, honey, grated fresh ginger, and minced garlic to create the zesty dressing.
Season the chicken breast with sea salt and black pepper on both sides.
Heat a non-stick skillet over medium-high heat with the toasted sesame oil.
Place the chicken in the pan and sear for 5-6 minutes per side until golden brown and cooked through to an internal temperature of 165°F.
Remove the chicken from the pan, let it rest for 3 minutes, then slice into thin strips and toss with the sesame seeds.
Pour the dressing over the chilled noodles and snap peas, tossing well to coat.
Plate the zesty noodles and top with the crispy sesame chicken and sliced green onions.